Block-molding press.



s I. 0.. TITUS.

-BLOGK MOLDING PRESS. v

4 Arum-Anon IILBD 00'1.7,1908. 918 712. v Patented Apr; 20, 1909..

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Witnesses:

'31. Si www 2 Attorney THE NORRIS'PEZ'ERS cm. WASHINGTON, D. c.

Inventor J. 0. TITUS. BLOCK MOLDING- PRESS. APPLIOATION FILED 0017,1908.918,71 2. Patented Apr. 20, 1909.

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marred Joan 0. Tires, or MARION, on o,

BLOCK-MOLDING PRESS.

Specification of Letters Patent,

l "Patented A ril 20, 1909,

' Appl ca o filed October 7,190 Serial No. 56,592

To all whom it may concern:

Be it known that 1, JOHN C. Trrns, 'a citizen of the United States,residing at Marion,

Marion county, Ohio, have invented certain new and useful improvementsin Block Molding Presses, ofwhich the following is a specification. y

This inventlon,pertaining to presses for molding blocks, as of concrete,will be.

readily understood from the'following de scription taken in connectionwith the aocompanying drawings in which Figure 1 is a side elevation,part vertical section, of a mold-press exemplifying my presentinvention: Fig. 2 a vertical transverse section of the press: Fig. 3 aside elevation of the mold and the blook tilter: and Fig. 4 aperspective View of the bloclr tilter.

In the drawings 1, indicates the base of the press: 2, the arch-of thepress 3, vertical rods connecting the baseand the arch: i, a lowerhydraulic cylinder supported byj'the base: 5, theupwardly projecting ramof this cylinder: 6, a-lowerfollower connected with the upper end ofrain 5 and sliding on rods as guides: 7, a mold resting on the base ofthe press and open at its top and its bottom: 5%, a mold-floor fitted toslide vertically in the mold: 9, an upper follower sliding on rods 3 asguides: 10, a horizontal guideway carried by the upper follower andprojecting from a position over the mold to a position outwardlysidewise beyond the mold: 11,'an extens on-piece havlng lts upper endfitted to guideway 10 so as to slide in and out therein and havingitslower end adapted to secured to 13, an upper hydraulic cylinder carriedby the arch over the mold: 14, theram of the upper hydraulic cylinder:15, a pullback cvlinder mounted. on thearoh of the press? 16, the ram ofthe pullback cylinder: 17,

pullback rods connecting upper follower9 with the pullback ram: 18, apair of expulsion hydraulic cylinders supported at the base of thepress: 19, then: rams pro ecting go down into the mold: 12, the moldroof, the base of the BXliGllSlOll-PIBCQ and adapted to sllde down 1nthe ,mold'zi serve as upwardstops for those shoulders:

"22, cross-bars disposed in the space between mold floor 8 and lowerfollower 6, these cross-bars being engaged by the upper ends of theexpulsion ramsz' :23, the sidewallsof the mold: 24, the end walls of themold, these end walls having feet extending down to and secured to thebase 1 of the press: 25, a pair of horizontal .guideways projectingrigidly outward from one side of the mold at its top: 26, a horizontalpivot-pin mounted in and adapted to slide in these guideways to and fromthe mold: 27, a pair of horizontal armshaving their heels mounted on thepivot-pin, these arms being adaptled to move inwardly over the sidewallof the mold:- 28, arms formed with and projecting upward at right anglesto arms 27 :29, bearerbars disposed alongsidearms 28 and adapted forslidng motion relative thereto: 30, cooperating pins and diagonal slotsin the bearersbars' and in arms 28, so arranged that as the bearer-barsmove endwise relative to thefarms their inner edges will move somewhatinwardly: "31, a handle-bar connectingthe two bearer-bars: and 32, apallet restingiagainst the two bearer-bars.

"The size of the mold will, of course, be adapted to the dimensions ofthe block to be produced, either in the fundamental construction of themold, or in the provision of interior parts to vary its size. Inpractice, thus far, I have made no provision for vary ing the widthofthe mold, otherwise than in fundamental construction, but I havevaried the length of the mold by the employment of shiftable false endsbolted in the mold. The mold floor and the mold roof areto be ofdimension suited to the effective size of the mold. a a v The mold floorbeing in itslowermost position and the'upper follower 9 being in itsuppermost posit-ion, extension-piece 11, to-

gether with the mold roof, are to be pulled outwardly so, as'to leavethe top of the mold free and open. The mold is then to be filled withthe material of which the block is to be formed, after which theextension-piece and mold roof are to be slid inwardly to proper workingposition over the mold. The working pressure isnow to be applied toupper ram 14L and lower ram 5, the consequence being that the materialin the mold is solidly compacted between the mold floor and the moldroof, producing a solid block, and the full depth of the mold and theamount of material charged into the mold and to be suflicient to yield,under the pressure produced by the press, a block greater in height thanthat ultimately desired. In this formation of the block, the mold floormoves upwardly and the mold roof moves downwardly, each to someindefinite extent, the result, however, being a block of densitydependent on the pressure employed and of height in excess of thatdesired. Pressure is 110w to be relieved from the upper ram and appliedto the pullback ram, whereupon all of the upper movable parts of thepress rise. The lower ram, being still under pressure, will force theblock upwardly in the mold and more or less out of the mold, and theupward movement of the mold floor will cease when the upward movement ofthe lower follower 6 becomes arrested by the follower coming in contactwith the lower edges of the side walls of the mold, or by means of anyother stopping arrangement. Extension-piece 11 with the mold-roof, havmgbeen pulled sidewise out of the way, the top of the block, or theprojection of the block out of the top of the mold represents thesurplus height of the block, it being understood that the distance fromthe top of the mold to the stopping point for the mold floor will alwaysrepresent the desired height of the block. The surplus material of theblock is now to be struck off even with the top of the mold leaving theblock at exactly the desired height, and thereupon pressure is to beapplied to the expulsion rams which promptly shove the block, and themold floor on which it rests, up entirely out ofthe mold, this upwardmovement ceasing when the lower face of the mold floor passes a trifleabove the level of the upper surface of tilting arms 27, the cessationof the upward motion, as produced by the expulsion rams, beingdetermined by the shoulders of the rams coming in contact with the caps21, which latter furnish means for nlcely adjusting the upward limit ofthe vertical motion of the expulsion rams. The tilting structure carriedby pivot-pin 26 is now to be moved inwardly till arms 27 take positionin under the mold floor, whereupon a slight tilting of the structurecauses the mold floor and block to be picked up by it and permit them tobe withdrawn sidewise out from the press.

In pushing the tilting structure inwardly the motion should not stoptill pallet 32 lies fairly up against the side of the block. When thetilting structure with the block has been withdrawn, the affair is to beturned quarterway on pivot-pin 26 so that the block rests on pallet 32instead of on the mold floor, and it is highly important that the palletfit very solidly up against the block. This is insured by pressing down-X ward on the handle and bearer blocks, for l the diagonal pin ant slotarrangement then forces the pallet snugly against the block. The blockhaving been turned on its side may be carried away, together with thepallet on which it rests, and the mold floor from which the block hasbeen freed may be replaced. in the press, and everything is ready for arepeated procedure.

I claim 2* l. A block molding press comprising, a rigidly supportedmold, amold roof adapted for movement downwardly into said mold for anindefinite distance controlled only by the compacting of the materialpressed upon by the mold roof, a mold floor adapted for movementupwardly into and through the mold, pressure devices serving to pressthe mold roof and mold floor toward each other and to act independent ofeach other so as to compact a mass of indefinite thickness within themold, a stop to limit the upward movement of the mold floor to adefinite distance from the top of the mold under the influence of thepressure device acting upwardly on the mold floor and irrespective ofthe vertical position of the mold roof. whereby when the pressure on themold roof is relieved the mold floor rises to a definite distance fromthe top of the mold, and mechanism for subsecpiently elevatin the moldfloor to the top of the mold, whereby there may be produced in the molda block of indefinite thickness and definite compactness whose surplusthickness may be struck off at the top of the mold while the position ofthe mold floor is controlled by said step. combined substzmtially as setforth.

2. A block molding press comprising. a rigidly supported mold, a moldroof adapted for movement downwardly into said mold for an indefinitedistance controlled only by the compacting of the material pressed uponby the mold roof, a mold floor adapted for movement upwardly into andthrough the mold, a lower follower separably supporting the mold floor,a pressure device to press the mold roof downwardly, a pressure deviceto press the follower and mold floor upwardly, a stop to limit theupward movement of the follower so as to bring the mold floor a definitedistance from the top of the mold and irrespective of the verticalposition of the mold roof, whereby when the pressure rises to a definitedistance from the top of the mold, and mechanism for subsequentlyelevating the mold floor away from the follower and to the top of themold. whereby there may be produced in the mold a block of indefinitethickness and definite compact ness whose surplus thickness may bestruck off at the top of the mold while the position of the mold flooris controlled by said stop, combined substantially as set forth.

on the mold roof is relieved the mold floor like 3. A block-moldingpress comprising, a base, a mold supported thereby, a lower followerbelow the mold, a lower, ram for forcing the lower follower up, an upperfollower above the mold, an upper ram for forcing the upper followerdown, a pullback device for raising the upper follower, a mold; floorconnected with the lower ram, a horizontal guideway carried by the upperfollower, downwardly projecting extension piece sliding in saidguideway, and a mold roof carried by the base of the extension piece,combined substantially as set forth.

it. A block-molding press comprising, a base, a mold supported thereby,alower fol lower below the mold, a lower ram for forcing the lowerfollowerup, an upper follower above the mold, an upper ram for forcingthe upper follower down, a pullback device for raising the upperfollower, a mold floor connected with the lower ram, a mold roofconnected with the upper ram, a horizontal guideway at one side'of thetop of the mold,

a block-tilter arranged to slide in said guideway, inwardlv projecting"arms carried by the block-tilter and adapted to pass in *a-rdly over theside of the mold and into a position under the blockwhen the bloclrisforced upi'vardly out of the mold, and a pallet carried by the tilterand adapted to lie againsttheside atthe block when the,

'blpek is supported on said arms, combined substantially as set forth.

A block-moldlng-press comprising, a

base, a mold supported thereby, a lower follower below the mold, a lowerram for fore-l ing the lower follower up, an upper fol-i lower above themold, an upper ram forv forcing the upper follower down, a pullbackdevice for raising the .upperfollower, a mold floor connected with thelower ram, a mold roof connected with the upper ram, a

horizontal guideway at one side of the top,

of the mold, ablock tilter arranged to slide in said guideway,-inwardlyprojecting arms carried bythe blook-tilter and adapted to pass inwardlyover theside of the mold and intoa position under-the block when theblockis forced upwardly out of the, mold, a pallet carried by the tilterand adapted to tie against the side of the block when the block issupported on said arms, and means for shifting said pallet inwardlvrelative to said arms, c'embined substantially as set forth.

A block-molding press comprising, a base, a mold supported thereby,alower follower below the mold, a lower ram for forcing the lowerfollower up, an upper follower 7 above the mold, anupper ram for forcingthe upper follower down, a pullback device for raising theupperfollowena mold floor connected with the lower ra1n,a mold roofconnected with the'upper ram, a horizontal guideway at one side of thetop of the mold,

a. block-tilter arranged to slide in said guideway, inwardly projectingarms carried by the block-tilter and adapted to pass inwardly over theside of the mold and into a position under the block when the block isforced upwardly out of the mold, a pallet carried by the tilterandadapted to lie against the side of the block when the block is supportedon said arms, amember carried by the blocktilter at right angles to itsarms, bearer-bars carried by said member and lying against the outer.surface of the pallet, and cooperating pins and diagonal slotsconnecting the bearer bars with said tilter member and serving to shiftthe pallet inwardly when the bearer-bars are moved downwardly, combinedsubstantially as set forth.

7. A. blockmolding pressicomprising, a base, a mold supported thereby, alower follower below themold, a lower ram for forcing the lower followerup, an upper follower above the mold, an upper ram for forcing the upperfollower down, a pullback device for raising the upper follower, a moldfloor connected with the lower ram, a mold roof connected with the upperram, a horizontal guidewa-y rigidly supported at one side of the top ofthe mold, a block-tilter-mounted in said guideway, a pallet carried bythe block-tilter and adapted to be moved inwardly to position againstthe side of the block, arms projecting inwardly from the block-tilterand adapted to pass inwardly over the side of the mold and to positionunder the block, expulsion rams disposed below the mold and adapted topush the block up out of the mold,'and stops to limit the upwardmovement of the expulsion rams to such position that the arms of theblocktilter' will pass below the block, combined substantially as setforth.

S. A block-molding press comprising, a base a mold supported thereby, alower follower below the mold, a lower ram for forcing the lowerfollower up, an upper follower above the mold, an upper ram for forcingthe upper follower down, a pullback device for raising the upperfollower, a mold floor cennected with the lower ram, a mold roofconnected with the upper ram, a horizontal guideway rigidly supported atone side of the top of the mold, a block-tilter mounted in said guideway, a pallet carried by the blocktilter and adapted to be moved inwardlyto position against the side of the block, arms projecting inwardly fromthe block-tilter and adapted to pass inwardly over the side of the moldand to position under the block, expulsion rams disposed below the moldand adapted topush the block up out of the mold, upwardly presentingshoulders on the expulsion rains, and vertically adjustable lOO bracketsblock elevated by them will be above the level of the arms of the blocktilter, combined substantially as set forth.

9. A block-molding press comprising, a base, a mold supported thereby, alower follower below the mold, a lower ram for forcing the lowerfollower up, an upper follower above the mold, an upper ram for forcingthe upper follower down, a pullback device for raising the upperfollower, a mold floor connected with the lower ram, a mold roofconnected with the upper ram, a pair of horizontally sl tted bracketsprojecting outwardly from the top of one side of the mold, a pivot pindisposed in the slots of the and adapted for movement therein to andfrom the mold, a pair of arms mounted for rocking motion on saidpivot-pin and adapted to pass over the side of the mold to positionunder an expelled and elevated block, a pair of arms rigid with and atright angles with the first-mentioned arms, pins projecting from saidarms parallel with said pivot pin, a pair of diagonally slottedbearer-bars engaging said pins, a handle-bar connecting the outer endsof said bearer bars, and a pallet lying against the inner faces of thebearer-bars and adapted to take position against the expelled block,combined substantially as set forth.

10. A block-molding press comprising, a

base, a mold supported thereby, a moldfioor adapted for upward movementwithin the mold, a mold-roof adapted for downward movement within themold, pullback mechanism for moving the mold-roof upwardly, pressuredevices for moving the mold-floor and mold-roof toward each other, meansfor limitii'lg the ascent of the mold-floor under the influence of saidpressure devices, and mechanism independent of said pressure de vicesand independent of said limiting means for lifting the mold floor to thetop of the mold, whereby the mold floor and roof may produce a mass ofdefinite compactness and indefinite thickness with its base resting adefinite distance from the top of the mold which may serve as a gage instriking 01f the surplus material of the mass, combined substantially asset forth.

11. A, block-molding press comprising, a base, a mold supported thereby,a mold-floor adapted for upward movement within the mold, a mold-roofadapted for downward movement within the mold, pullback mechanism formoving the mold-roof upwardly, pressure devices for moving themold-floor and mold-roof toward each other, expulsion "devices forelevating the mold-floor independently of said pressure devices, andmeans for limitlng the ascent of the moldfloor under the influence ofsaid pressure devices independent of the position of the mold roof,whereby when pressure on the mold roof is relieved the mold floor may besupported at a definite distance from the top of the mold so as topermit excess material in the compactive mass to be struck oli of thetop with the top of the mold acting as a gage, combined substantially asset forth.

A block-molding press comprising, a base, a mold supported thereby, amoldl'loor adapted for upward movement within the mold, a mold-roofadapted for downward movement within the mold, a vertically movablelnnizontal guidcway disposed above the mold-roof, a downward extensionhaving its top sliding in said guideway and having the mold-roof securedto its base, pullback mechanism for moving the mold-roof and guidewayupwardly, pressure devices for moving the mold-floor and mold-rooftoward each other, and means for limiting the ascent of the mold-floorunder the influence of said pressure devices, combined substantially asset, forth.

13. A block-molding press comprising, a base, a mold supported thereby,a moldfloor adapted for upward movement within the mold, a removablemold-roof, a pressure device for moving the mold-floor toard themold-roof for the purpose of compressing material betwcon the floor andthe roof, expulsion mechanism for elevating the mold-floor and formedblock out of the mold, a horizontal guideway at the top of the mold, anda pair of connected horizontal, arms adapted to slide inwardly in saidguideway and pass under the moldfloor, combined substantially as setforth.

1%. A. block-molding press comprising, a base, a mold supported thereby,a moldtloor adapted for upward movement within the mold, a removablemold-roof, a pressure device for moving the mold-floor toard themold-roof for the purpose of compressing material between the floor andthe roof, expulsion mechanism for elevating the moldgtloor and formedblock out of the mold, a horizontal guide ay at the top of the mold,horizontalarms adapted to slide in said guide way inwardly and take position under the elevated mold-roof, bearerbars rigidly connected with andat right angles to said arms, a pallet disposed against said bearerbars, and a pivotal connection between said arms and their guideway topermit the arms to be turned to vertical position, combinedsubstantially as set forth.

JOHN C. TITUS. lVitnesses G. T. Hanmxo, JOHN H. Blinrnair.

